Helmet air circulation devices and methods of use

ABSTRACT

The present disclosure provides for devices and methods that actively circulate air into a helmet and around a wearer&#39;s face and head. Advantageously, the devices described herein can be added to off-the-shelf protective helmets and can leverage existing passive ventilation features to actively circulate fresh air without compromising protection against mechanical forces. The devices can be added to helmets on a temporary, permanent, or semi-permanent basis and can be used alongside additional protective accessories such visors, lenses, and/or face guards. The devices and methods described herein are be suitable to virtually all protective helmets (e.g. athletic or safety helmets). The devices described herein are portable, non-restrictive, and fully contained in the interior of the helmet. Helmets with integral forced-air circulation are also provided.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of and priority to U.S. Provisional Application Ser. No. 63/068,405, having the title “HELMET AIR CIRCULATION DEVICES AND METHODS OF USE”, filed on Aug. 21, 2020 and U.S. Provisional Application Ser. No. 63/090,792, having the title “HELMET AIR CIRCULATION DEVICES AND METHODS OF USE”, filed on Oct. 13, 2020, the disclosures of each of which are incorporated herein by reference in their entireties.

BACKGROUND

There are millions of participants in athletics at the youth, high school, collegiate, and professional level that require the use of protective helmets. These helmets partially or fully enclose the athlete's head to protect the athlete from mechanical forces experienced during athletic play and are carefully evaluated and certified by the National Operating Committee on Standards for Athletic Equipment expressly for this criterion.

As protection from mechanical forces is the foremost design criteria in the development of athletic helmets, athlete comfort is necessarily de-emphasized. The use of protective helmets in warm weather or prolonged use in any weather leads to the quick buildup and retention of heat within the confines of the helmet. This effect can also be pronounced by the use of additional protective equipment such as visors, lenses, or face guards which further extend the enclosure effect to fresh air.

Climbing temperatures and humidity from perspiration within the helmet present as athlete discomfort in the mildest instances but could be a contributing factor in developing heat stroke during game play. Heat stroke not only degrades performance but could in some instances rise to a medical emergency. During athletic competition, athletes deal with this discomfort by briefly removing their protective helmets as game play allows it. Not only are these opportunities unpredictable, but this is less than ideal as each instance of a protective helmet being removed and put back on is another opportunity for them to not be optimally fastened which can impact their effectiveness.

Manufacturers of protective athletic helmets have historically designed for this effect by building ventilation features into their products to passively cool the athlete's head. However, as additional ventilation features would necessitate the removal of material from the helmet, there is a limit to the ventilation that can be built into the helmet without compromising the protection they provide against mechanical forces.

Methods, devices, and equipment that provide cooling without compromising protection are needed.

SUMMARY

Embodiments of the present disclosure provide for forced air devices for protective helmets, protective helmets including forced air devices, methods cooling a wearer of a protective helmet with a forced air device and the like.

An embodiment of the present disclosure includes a device for a protective helmet. The device can include a power assembly and a fan assembly. The device can circulate, where the air can be circulated within the interior of the helmet, directed to a wearer's skin, or a combination thereof.

An embodiment of the present disclosure also includes a protective helmet that includes an outer shell, an inner lining, and a device comprising a power assembly and a fan assembly. The device can be fastened between the outer shell of the helmet and the inner lining of the helmet. Air can be circulated within the interior of the helmet, directed to the wearer's skin, or a combination thereof.

An embodiment of the present disclosure also includes a protective helmet, the protective helmet having a protective shell and a device comprising a power assembly and a fan assembly, where the device is integral to the interior of shell of the helmet, and where the device provides forced air circulation to the wearer.

Other compositions, apparatus, methods, features, and advantages will be or become apparent to one with skill in the art upon examination of the following drawings and detailed description. It is intended that all such additional compositions, apparatus, methods, features and advantages be included within this description, be within the scope of the present disclosure, and be protected by the accompanying claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Further aspects of the present disclosure will be more readily appreciated upon review of the detailed description of its various embodiments, described below, when taken in conjunction with the accompanying drawings.

FIG. 1A shows an example of an unmounted air circulation device for helmet application in accordance with embodiments of the present disclosure. FIG. 1B is another example of an unmounted air circulation device for helmet application having an integrated electronics enclosure, in accordance with embodiments of the present disclosure. FIG. 1C is an example of the integrated electronics enclosure as shown in FIG. 1B, opened to show internal components.

FIG. 2 shows the interior of an American football helmet mounted with an air circulation device in accordance with embodiments of the present disclosure.

FIG. 3 shows a set of air-intake tubes for an air circulation device in accordance with embodiments of the present disclosure.

FIGS. 4A-4E provide examples of various power assemblies and mounts in accordance with embodiments of the present disclosure. FIG. 4A shows a power assembly including non-rechargeable batteries. FIG. 4B shows the battery charging and voltage converting circuits. FIGS. 4C-4D show a comparison of an 1800 mAh lithium-ion polymer battery (L) and a 3400 mAh standard 18650 lithium-ion battery (R). FIG. 4E is an example of a rechargeable battery connected to a charging circuit with USB port.

FIGS. 5A-B show the electronics control module with charging port and exit allowances for blower, battery, and remote switch in accordance with embodiments of the present disclosure.

FIG. 6 provides an example of a custom enclosure for a control switch for adhering the switch to the inside of the helmet in accordance with embodiments of the present disclosure.

FIGS. 7A-7E provide examples fan assembly enclosures designed for allowing a hose to be attached to the blower with minimal added weight in accordance with embodiments of the present disclosure.

FIGS. 8A-D show an example of an airflow outlet in accordance with embodiments of the present disclosure.

FIG. 9 provides an example of an assembled air circulation device in accordance with embodiments of the present disclosure.

FIGS. 10A and 10B provide examples of an air circulation device installed in two different models of protective helmet in accordance with embodiments of the present disclosure.

FIGS. 11A-11H are various views of plan drawings of an integrated electronics enclosure in accordance with embodiments of the present disclosure. FIG. 11I is a camera image of an example integrated electronics enclosure.

FIGS. 12A-12D are various views of plan drawings of a fan assembly enclosure in accordance with embodiments of the present disclosure.

FIGS. 13A-13D are various views of plan drawings of a rigid air tube in accordance with embodiments of the present disclosure.

FIGS. 14A-14D are various views of plan drawings of an air outlet nozzle in accordance with embodiments of the present disclosure.

FIGS. 15A-15E are examples of an industrial helmet (hard hart) including an add-on air circulation device in accordance with embodiments of the present disclosure.

FIGS. 16A-16P are plan drawings of the enclosure for the device shown in FIGS. 15C-15E in accordance with embodiments of the present disclosure.

FIGS. 17A-C are images of a batting helmet with an integrated device for forced air circulation in accordance with embodiments of the present disclosure.

FIG. 18A is an example of an industrial protective helmet (e.g. a hard hat) with the device integrated into the helmet shell at the point of manufacture in accordance with embodiments of the present disclosure. FIG. 18B is an example of an industrial protective helmet with the device integrated into the suspension system of the hard hat in accordance with embodiments of the present disclosure.

The figures illustrate only example embodiments and are therefore not to be considered limiting of the scope described herein, as other equally effective embodiments are within the scope and spirit of this disclosure. The elements and features shown in the drawings are not necessarily drawn to scale, emphasis instead being placed upon clearly illustrating the principles of the embodiments. Additionally, certain dimensions may be exaggerated to help visually convey certain principles. In the drawings, similar reference numerals between figures designate like or corresponding, but not necessarily the same, elements.

DETAILED DESCRIPTION

Before the present disclosure is described in greater detail, it is to be understood that this disclosure is not limited to particular embodiments described, and as such may, of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting, since the scope of the present disclosure will be limited only by the appended claims.

The present disclosure provides for devices and methods that actively circulate air into a helmet and around a wearer's face and head. Advantageously, the devices described herein can be added to off-the-shelf protective helmets and can leverage existing passive ventilation features to actively circulate fresh air without compromising protection against mechanical forces. The devices can be added to helmets on a temporary, permanent, or semi-permanent basis and can be used alongside additional protective accessories such visors, lenses, and/or face guards. The devices and methods described herein are be suitable to virtually all protective helmets (e.g. athletic or safety helmets). The devices described herein are portable, non-restrictive, and fully contained in the interior of the helmet.

In general, embodiments of the present disclosure provide for air circulating devices for protective helmets, methods of using air circulation devices, and helmets including air circulation devices.

The present disclosure includes an air circulating device for use in protective helmets. Advantageously, the forced air from the circulation device can include a portable power supply that is lightweight and can be mounted to a protective helmet in a variety of configurations and without any destructive fastening methods that would impact the helmet's performance against mechanical forces. The device can be mounted entirely within the interior of the protective helmet such that the device is protected from impacts to the outside of the helmet.

Embodiments of the present disclosure include methods for enhancing the comfort of a protective helmet, including attaching a device as above to a helmet to provide direct and/or indirect forced airflow to a wearer's head. The method can include affixing a device comprising a power assembly, a fan assembly, and/or tubing (e.g. flexible or rigid tubing) to the interior of a helmet such that an intake valve of the fan assembly is configured to intake air from existing vents in the helmet; intaking air through the existing vents via the fan assembly; forcing the air from the fan assembly into the tubing; and directing the air from the tubing to the interior of the helmet or onto the wearer's skin. In some embodiments, the device can be integrally manufactured into the helmet.

The present disclosure is related to forced air circulation devices and methods for use in protective helmets, hereinafter “the device”. Protective helmets, as used herein can include helmets having a hard exterior shell. Nonlimiting examples of helmets include those intended for American football, hockey, lacrosse, cycling, motorsports, snowsports, equestrian sports, bull riding, baseball, softball, extreme sports, military, law enforcement, and hard hats. In other embodiments, with the addition of extra padding, the device of the present disclosure could also be used in conjunction with soft-sided protective headgear, such as in rugby or fencing. In yet other embodiments, the device could be used in non-helmet headwear applications such as mascots or other costumes.

The device of the present disclosure can be used in conjunction with open faced helmets or helmets including face shields, masks, or that are otherwise substantially enclosed. In addition to providing cooling, the device of the present disclosure can aid in improving breathability and defogging in enclosed helmets.

The device, in some embodiments described herein, can be added to an existing helmet after manufacture. Such an “add-on” device can be installed by a user, a retailer, or a manufacturer. In other embodiments, the device is integrated into the helmet itself, such as by a helmet manufacturer, such that the helmet is designed to include the device.

Advantageously, the devices and methods described herein yield a compact central unit and a modular design with the power assembly, fan assembly, and airflow outlet being separately replaceable or upgraded. The small size and modular design allow for small, light batteries that are hot-swappable during athletic endeavors, and/or can provide rechargeable batteries that allow for the device to function for the entire duration of a game or practice before being recharged. In some embodiments the power assembly can include such as a 9V battery or a rechargeable 1800 mAh Lithium-Ion Polymer pouch cell. Other disposable or rechargeable power sources can be envisioned by one of ordinary skill in the art.

In general, the device 100 includes at least one fan assembly 10, a power assembly 20, and tubing 30 (e.g. a flexible tube, a shaped, rigid tube, or a combination thereof). The power assembly 20 including control circuitry and a battery 21 (shown as a 9V battery in this example), is connected to at least one fan assembly 10. The fan assembly 10 is connected to a first end of the tubing 30. The fan assembly 10 provides air through the tubing 30, causing air to exit from the second end of the tubing 30. Some devices, as described in the examples, can operate without tubing by using channels in the helmet or by circulating air without directing it via tubing.

The device 100 can be configured to be mounted to the interior of a protective helmet shell, underneath the padding. Various fixing means such as hook and loop fasteners, adhesives, and the like can be used to affix the device components. Advantageously, the device 100 can be configured to fit a variety of helmet styles and to be fitted such that the padding of the helmet protects both the device and the wearer. The tubing 30 can, in some embodiments, be cut to fit according to the particular needs of the wearer and the style and/or size of the helmet.

In some embodiments, the fan assembly 10 can be mounted to the interior of existing ventilation apertures in the helmet 200 by which air can be drawn from the exterior of the helmet. The fan 10 can also utilize air circulating within the cavity. The fan 10 assembly can be powered by a power assembly 20. The air drawn into the fan assembly can then be circulated around the interior of the helmet via the tube assembly 30 to provide the wearer with cooling forced air.

The flexible tubing 30 can provide point-directed airflow from the second end of the tubing. Alternatively, the tubing 30 can be capped at the second end and perforated along its length to provide linearly distributed airflow. In another embodiment, the second end of the tubing can include an airflow outlet such as a vent to direct airflow. The tubing can, in some embodiments be flexible tubing that retains its shape when bent. The term flexible tubing can include flexible hoses. In some embodiments, the flexible tubing 30 can include one or more flexible bellows segments for adjustable bending. The flexible tubing can have an internal diameter of about 6 to 25 mm. In some embodiments, the tubing 30 can include a directional airflow outlet 40 at the second end. Depending on the configuration of the directional airflow outlet, the device can provide either focused air flow (such as to the wearer's face) or allow for the air to be spread or circulated throughout the helmet. In some embodiments (such as in add-on devices customized for a particular helmet style or in integrated helmets) flexible tubing may be omitted, wherein the rigid tubing connects to or is formed as a single piece with the fan assembly enclosure.

In some embodiments, power is supplied by a power assembly 20 (also referred to as a power pack). The power pack can include any appropriate battery 21 or cell that can be configured to supply suitable voltage and current to the device and necessary wiring or control circuitry 22 and optionally voltage-step up circuitry 26. The control circuitry 22 can connect to a switch 24. Control circuitry 22 can include charging circuitry and optional discharge protection. Various power assemblies may be used, provided they are sufficient to power the device. Such suitable batteries include rechargeable lithium-ion (“Li-ion”) batteries, rechargeable lithium-ion polymer (“Li-Po”) batteries or pouches, or single use lithium or alkaline batteries, the latter foregoing the need for a recharging port. The power pack can be affixed to the interior of the protective helmet 200 and can provide about three hours or more, or about four hours or more of continuous use to the device, which is suitable to last for the duration of most competitive matches. In another embodiment, the power assembly 20 can be comprised of one or more Li-ion batteries, for example the widely available rechargeable 18650 Li-ion battery, with additional circuitry to provide a stable 5 volts (“V”) current limited to 200 milliamps (“mA”) per blower. An 18650 Lithium-ion cell with a capacity of 3400 mAh can provide over 12 hours of runtime.

A custom plastic power assembly enclosure 23 battery charging and/or control circuitry 22 can be included. In some embodiments, voltage step-up circuitry 26 can be included in power assembly enclosure 23. In other embodiments, the power assembly enclosure 23 can house control circuitry 22, battery 21, voltage step-up circuitry 26, or combinations thereof. Advantageously, the power assembly enclosure 23 can serve as a case to protect the power assembly from perspiration and impact.

In some embodiments, the power assembly enclosure 23 can conceal at least one charging port inside the helmet to be accessed for recharging the power pack In some embodiments, the power assembly 20, control circuitry 22, and charging port 25 can supply additional accessories such as impact sensors or battery charge meters.

In a particular embodiment, the power assembly 20 supplies 5 V and 200 mA to each of two fan assemblies 10 (also referred to as blowers) that can be positioned to leverage the location of existing passive ventilation apertures located in the helmet. In one embodiment, the fan can have an air intake that can be positioned directly over such apertures. Alternatively, the fan assembly 10 can be positioned to leverage channels defined inside the volume of the protective helmet by interior padding material to provide for unencumbered air flow from existing apertures to the blower intake. Alternatively, more or fewer blowers can be used as allowed for by the capacity of the power pack.

In one embodiment, the device can be turned on or off by a user via the use of one or more power on/off switches or buttons to the battery power pack. The power on/off switches 24 can be adhered to the interior of the helmet in a location accessible to the user, but that is not generally susceptible to accidental impact, such as behind the wearer's ear or near the jawline.

In one embodiment, the device can be turned to variable power settings, such as low, medium, and high, via the use of one or more variable power switches or buttons to the battery power pack.

In some embodiments, the fan assembly 10 can generate about 2 to 4 cubic feet per minute (“CFM”) of air to the device. Advantageously, the fan assembly 10 can be cushioned and is sufficiently quiet to provide air circulation without excluding ambient noise such as field calls or coach instructions (e.g. from about 26 to 40 dB).

The fan is of an appropriate size to be installed between the helmet shell and the interior padding without causing discomfort to the wearer or adversely affecting the fit of the helmet. For example, the fan assembly 10 shown in FIGS. 1A, 1B and 2 is about 50×50×15 mm.

The fan assembly 10 can be attached to first end of a tube assembly 30 via a coupler 12 to distribute the air from the fan assembly 10 to the wearer. In one embodiment in which the device is targeted to a specific commercial helmet model, a fitted plastic or rubber coupler 12 can be made to tightly couple the existing helmet aperture to the blower intake. In other embodiments, a permanent coupler 12 can be affixed to the fan assembly 10 for ease of tubing installation and accurate repeat installation. The coupler can accommodate one or more tubes, depending on the desired configuration of the airflow.

In some embodiments, the air intake area of the fan assembly 10 can be fitted with a filter, such as an N95 filter to provide clean air to the wearer.

In one embodiment, the blower or fan exhaust of the fan assembly 10 can be directed into flexible tubing 30 that allows for directing fresh air to locations that provide the wearer with the most comfort, such as the face, by allowing for fixing the tubing's outlet to a preferred location inside the helmet. As described above, the tubing can be affixed to the interior of the helmet via fastener methods such as clamps, straps, or hook-and-loop fasteners. The tubing can be affixed inside the helmet by a user according to the specific design of the helmet and the needs of the wearer and can be cut to a desired length during fitting.

As described above, the airflow outlet 40 can be the end of the tubing or can be directed via a vent. In some embodiments, the airflow outlet 40 can be a microregister. In the examples shown in FIGS. 8A-D, the airflow outlet 40 is configured to insert into tubing 30 via a barbed coupler 12 on the proximal and. FIG. 8A is a drawing of the airflow outlet 40. In the shown embodiment, the airflow outlet 40 has specific contours for left-side and right-side pieces to fit comfortably near a user's temple region. The microregister can have a plurality of interior ducts to direct airflow to exit at the distal end. In some embodiments, the airflow outlet 40 can have operable louvers or other adjustable flow mechanisms. The airflow outlet 40 can have a soft exterior or casing for improved comfort. The shape of the airflow outlet 40 can be modified to fit various helmet designs. For example, a user can select a particular airflow outlet 40 from a selection of airflow outlets to best fit a specific helmet style or model.

The device 100 of the present disclosure can be configured in multiple ways to support various helmet sport types, manufacturers, and models. In some embodiments, a helmet can be configured with two devices, one for the right side and one for the left side.

In other embodiments, one power assembly 20 can be configured to supply both the left and right blower. In yet another embodiment, the power assembly 20 can supply a single fan assembly 10, where the fan assembly 10 include two couplers to supply two tubes 30 to feed the left and right sides.

A helmet including an air circulation device is also described. The helmet can be a hard-shelled helmet with the air circulation device 100 integral to the helmet interior. Advantageously, such a design can eliminate the need for disturbing the interior helmet padding to install the device after the helmet is manufactured. Additionally, the device parts can be recessed into the shell to eliminate possible protrusions. The parts of the circulation device (e.g. the fan assembly 10, power assembly 20, tubing 30 and airflow outlet 40) can be embedded into channels or recesses shaped to fit the parts. Alternatively, some or all parts of the air circulation device 100 can be molded as part of the helmet, such as by injection molding.

In some embodiments, the tubing can be embedded into channels configured to hold the tubing in place. In other embodiments, the helmet interior can be molded with ducts leading from the fan assembly to the airflow outlet, removing the need for tubing.

The helmet can include a charging port on the exterior or the interior of the helmet to charge the battery from a location easily accessible to the user. Similarly, the control switch can be included in the helmet, rather than mounted to it. The switch can also be a wirelessly controlled switch or otherwise remotely operated such as via an app with Bluetooth.

In some embodiments, the device can include a custom circuit board that contains all the functionality of the charger board, protection circuitry, voltage step-up, and a board-mounted switch. This circuit has also been designed to work with upgraded 3-wire Lithium-Ion cells with a Negative Temperature Coefficient (NTC) thermistor. Advantageously, the circuit board allows for improved safety in the device, as the device can monitor the internal temperature of the battery while charging and shut off charging if needed.

The custom circuit board as described above allows for miniaturization of the circuitry when compared to circuitry with separate components. In this embodiment, the battery and electronics board can now be integrated together in a single enclosure, allowing for a design where only two modules need to be attached to the inside of the helmet (i.e. the fan assembly and the power assembly enclosure that includes the power pack, control circuitry, and switch).

In some embodiments, a custom battery shape using a Lithium-Ion polymer pouch battery can be made to match the shape of the blower such that the battery and blower are integrated into one unit. This configuration allows for the miniaturized custom circuit board to be flexibly placed wherever the user would like access to the switch, depending on the helmet model and their wearer's preferences.

In some embodiments, all three modules (e.g. the battery, control circuitry, and fan assembly) can be integrated into a single unit. A proximity sensor can be included to handle powering the device on and off if the switch is less accessible in this configuration.

As described above, the forced air circulation devices described herein can be retrofitted to existing helmets, either removably or permanently. The present disclosure also provides for various types of protective helmets in which the forced air circulation device is integrated within the helmet shell and/or padding such that the forced air circulation device is an integral part of the protective helmet. Advantageously, the integrated helmets can be manufactured such that the shell/and or padding are designed specifically to accommodate the components of the device, providing extra comfort to the user.

In some embodiments, the constituent components of the device, e.g. the fan assembly, power assembly, and flexible tubing, can be separately affixed to the interior of the protective helmet. In some embodiments the device components can be removably attached via commercially available high-performance adhesive-backed hook-and-loop fasteners. Other attachment means such as magnets, snaps, clamps, glue, tape, adhesive pads, and the like can be envisioned by one of ordinary skill in the art. Modular attachment capability can serve to make the device compatible with the broadest number of protective helmet models and/or needs of an individual wearer. The device can be fitted by a helmet manufacturer, a retailer at the point of sale, a user, or another party such as sports equipment managers. Alternatively, in some embodiments all constituent components of the device can be integrated into a single component should such a configuration be desired for a more convenient application suited to a specific helmet model.

In some embodiments, the device can be added to a standard hard hat (e.g. a protective helmet for use in industrial and work environments such as construction or warehouses). The device can be retrofitted into most standard, existing hard hats. In this embodiment, the device can be contained within the interior of the hard hat, fitting between the helmet shell and the suspension system and affixed to the interior with such as adhesive strips of hook-and-loop tape to aid in repositionability. The device offers a cooling effect by leveraging the void left between the hard-hat's suspension system and shell to force air in and out of said void, circulating out body-heated air for outside air as well as creating an evaporative cooling effect through convection. Advantageously, the device has a low-profile, ribbon-like configuration that is flexible to follow the contours of the helmet shell. The device can be used for the duration of a full workday. In some embodiments, a dust filter can be added to the fan intake to prevent spreading of air-borne particulates present in the workplace. In some embodiments, the fan's outflow can be directed equally around the perimeter of the fan assembly, while in others it can be directed into one or more nozzles.

In some embodiments, the device can be integrated into the suspension system of the hard hat, rather than attached to the interior of the shell. The fan assembly can be attached to the back of the suspension system with the intake facing out from the nape of the head. Air can be forced along channels, one on each side, running along or on top of the temple straps of the suspension system. Each of them can direct air down towards the wearer's face below the temple-line by way of orifices along the bottom of the channels. In some embodiments, the orifices could also be turned 180 degrees, facing “up” and into the hard-hat shell for convective circulation of the stale air inside the shell. The power and control components can be stacked below the fan, and along their perimeter is the ratcheting mechanism for adjusting the fit of the hard-hat by controlling the diameter of the suspension system.

In some embodiments, the device can be integrated directly into a protective helmet, such as an athletic helmet. In this way, the forced-air circulation can be built directly into the helmet at the point of manufacture. This approach allows for the shell of the helmet to contain defined air channels that are internal to the protective helmet. Advantageously, an air curtain effect can be achieved by placing air outlets as perforations around the entire perimeter of the helmet, blowing cool air around the wearer's neck area. This provides an immediate cooling sensation as well as a fairly large area of exposed skin for evaporative cooling. Integration of the cooling system at manufacturing can also allow for the use of lithium-ion polymer batteries that are shaped to the exact internal contours of the helmet, taking up minimal volume inside the helmet cavity. The fan and power system are functionally the same as with a protective helmet add-on device as described above, but the higher power cell carrying capacity of an integrated system can allow for higher power fan motors to be used, providing an even greater cooling effect. Particular embodiments of integrated athletic helmets can be batting helmets or American football helmets.

In another embodiment, the integrated protective helmet can be an industrial helmet (e.g. a hard hat). As with the athletic helmets, integrating air circulation technology into the design of a protective industrial helmet can allow for greater operating time, improved weight distribution, and ease of use when compared with an add-on device.

In some embodiments of the integrated industrial helmet, interior concavities can be built into the shell form to hold the fan assembly, power assembly, and control circuitry modules.

Additional features, including but not limited to sensors, location devices, and wireless communications can be included in any of the devices described herein. The additional features can be included in devices for use with existing helmets (add-on devices) or in integrated helmets. For example, in the case of protective helmets worn in an industrial setting, additional features such as sensors can be provided to provide value to the workplace as well as the wearer that are made possible by the presence of a power cell in the device. For example, health and safety metrics can be taken through sensors in the device as they relate not only to the individual but the facility or job site. Environmental conditions like temperature, chemical compound levels, and noise can be constantly measured providing greater intelligence. Additionally, unique markers, either personally identifiable or not, can be embedded in each device and proximity sensors placed throughout a facility to serve varied location-based features. Such features can include but are not limited to: “hit point” geofences can be created around areas that must be visited with certain frequency; exclusionary geofences can be created to alert safety personnel of unauthorized entry; and location of workers or worker count can be immediately ascertained in case of a safety event. This sensor and location data can be used in real time as some of the above examples or logged and evaluated for identifying patterns that can provide business intelligence like identifying locations where health and safety events tend to occur.

It must be noted that, as used in the specification and the appended claims, the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise.

Examples

Now having described the embodiments of the disclosure, in general, the examples describe some additional embodiments. While embodiments of the present disclosure are described in connection with the example and the corresponding text and figures, there is no intent to limit embodiments of the disclosure to these descriptions. On the contrary, the intent is to cover all alternatives, modifications, and equivalents included within the spirit and scope of embodiments of the present disclosure.

Add-on Devices

Turning now to the figures, in general, the device 100 includes at least one fan assembly, a power assembly, and a flexible tube. One particular example is shown in FIG. 1A. The power assembly 20 including control circuitry and a battery 21 (shown as a 9V battery in this example), is connected to a fan assembly 10. The fan assembly 10 is connected to a first end of a single flexible tube 30. The fan assembly 10 provides air through the tubing 30, the air exiting from the second end of the tubing 30. In the example shown in FIG. 1A, a pair of devices are shown such that a helmet 200 can be equipped to distribute air to both sides of the wearer's head.

FIG. 1B is another example of a device 100. This example includes a power assembly 20, which is a rechargeable 1800 mAh Lithium-Ion Polymer pouch cell. Power assembly 20 is connected to an integrated electronics enclosure 50 that includes circuitry for lithium battery charge management and/or over-discharge protection printed circuit board (“charger board”), a voltage-step-up circuitry, and a switch 24. Integrated electronics enclosure 50 is connected to a purpose-built fan assembly enclosure 13 for fan assembly 10, the enclosure 13 having a largely volute shape with a barbed coupler 12 on the end. The fan assembly enclosure 13 drives airflow to directional airflow outlet 40 via flexible connective tubing 30 (connected to barbed coupler 12) and a rigid air tube 32. The fan assembly is about 50 mm×50 mm×15 mm.

FIG. 1C is an example of the integrated electronics enclosure 50, as shown in FIG. 1B, opened to show the voltage step-up circuitry 26, charger board 28, and switch 24.

FIG. 2 provides an example a device such as the one shown in FIG. 1B that has been mounted into an American football helmet 200. The integrated electronics enclosure 50, fan assembly 10, and airflow outlet 40 are shown installed under the existing protective padding on the interior of the helmet. The tubing has been fitted to the helmet such that air exits the airflow outlet 40 at the end of the tubing at the front of the helmet near the wearer's face. Each of the components of the device are cushioned between the shell and the interior padding of the helmet so as to prevent discomfort to the user.

FIG. 3 provides an example of flexible tubing 30, which can provide point-directed airflow from the second end of the tubing when the first end is connected to the fan assembly. Alternatively, the tubing 30 can be capped at the second end and perforated along its length to provide linearly distributed airflow. The flexible tubing can have an internal diameter of about 6 to 25 mm.

As described above, various power assemblies may be used, provided they are sufficient to power the device. Such suitable batteries include rechargeable lithium-ion (“Li-ion”) batteries, rechargeable lithium-ion polymer (“Li-Po”) batteries, or single use lithium or alkaline batteries. FIG. 4A shows an embodiment of a power assembly 20 that is configured to use a standard 9V battery, thereby foregoing the need for a recharging port.

FIG. 4B provides an example of a custom plastic power assembly enclosure 23 including a battery charging port 25 and control circuitry 22. Voltage step-up circuitry 26 can be included in power assembly enclosure 23. FIGS. 4C-4D show a comparison of an 1800 mAh Lithium-Ion Polymer battery and the earlier “18650” Lithium-Ion battery, respectively. While the 1800 cells provide a little over half of the runtime of the 18650 cells (at 3400 mAh), the savings in internal volumes are significant and weight for the battery is reduced by 74% while still nominally providing over six hours of runtime, which even with large tolerances for unit performance variations comfortably exceeds the duration of athletic activity in competition or training. FIG. 4E is an example of a rechargeable battery connected to a charging/protection circuitry with a USB charging port.

As shown in FIGS. 5A-5B, the power assembly enclosure 23 can conceal at least one charging port inside the helmet to be accessed for recharging the power pack. FIG. 5A shows a front view of the power assembly 20 in the power assembly enclosure 23, having a micro-USB charging port (which can alternatively be such as a USB Type-C port) 25 and an opening for switch cables to exit the enclosure. FIG. 5B shows an embodiment in which the switch 24 is remote to the electronics control unit to allow for a minimally sized electronics case as well as the most flexible placement of the switch 24. In some embodiments, the power assembly 20, control circuitry 22, and charging port 25 can supply additional accessories such as impact sensors or battery charge meters.

FIG. 6 provides an example of a custom enclosure for a control switch 24 for adhering the switch to the inside of the helmet. The flattened portion can serve as an area for adhesion or attachment means.

FIGS. 7A-7D provide several views of a fan assembly enclosure 13 designed for allowing a hose to be attached to the blower with minimal added weight. The fan assembly enclosure 13 can be a frame fitted to the fan assembly 10. In this example, the fan assembly enclosure 13 is molded as a single piece that includes a barbed coupler 12 to couple the blower to flexible tubing. FIG. 7E shows an additional embodiment of the fan assembly enclosure 13 and fan assembly 10. The fan assembly enclosure 13 is a sleeve or casing integral to the fan assembly 10. The shell of the fan assembly 10 includes a coupler 12. The coupler 12 can have a straight exit (as shown) or curved/offset exit (not shown) to provide air delivery to the tubing.

In the examples shown in FIGS. 8A-8D, the airflow outlet 40 is configured to insert into tubing 30 via a barbed coupler 12 on the proximal end. As described above, the airflow outlet 40 can be the end of the tubing or can be directed via a vent. In some embodiments, the airflow outlet 40 can be a mini-register (also called a microregister) 42. FIG. 8A is a drawing of the airflow outlet 40. In the shown embodiment, the airflow outlet 40 has specific contours for left-side and right-side pieces to fit comfortably near a user's temple region. The microregister 42 can have a plurality of interior ducts 41 to direct airflow to exit at the distal end, as shown in FIG. 8B, the exterior openings of which are shown in FIG. 8C. In some embodiments, the airflow outlet 40 can have operable louvers or other adjustable flow mechanisms. The airflow outlet 40 can have a soft exterior or casing for improved comfort (FIG. 8D). The shape of the airflow outlet 40 can be modified to fit various helmet designs. For example, a user can select a particular airflow outlet 40 from a selection of airflow outlets to best fit a specific helmet style or model.

FIG. 9 shows two devices 100, one for the right side and one for the left side of a helmet. As shown, the left and right sides have an independent power assembly 20 that includes battery 21 coupled to a fan assembly 10 operated by a switch 24. The switch 24 is included in an integrated electronics enclosure 50 as described in FIG. 1B. The fan assembly 10 is connected via tubing 30 to an airflow outlet 40. Both the fan assembly 10 and airflow outlet 40 have a connector 12 to which the tubing 30 is securely attached. The shown embodiment includes rechargeable 1800 mAh Lithium-Ion polymer pouch cell, but any of the power assemblies 20 described herein could be substituted.

FIGS. 10A and 10B provide examples of the device 100 installed in two different models of protective helmet 200. The interior padding 60 of the helmet has been lifted to show the placement of the device 100. Different options for the power assembly 20 are shown.

FIGS. 11A-11H are various views of plan drawings of an embodiment of the integrated electronics enclosure 50. FIGS. 11A-11D show the bottom of the integrated electronics enclosure 50, while FIGS. 11E-11H show the top of the integrated electronics enclosure 50. In FIG. 11A, element 1 indicates an aperture to receive a self-locking switch 24. Element 2 is an aperture to accept a charger for a charging port 25 on a charger board 28, where element 3 is a surface for holding charger board 28 in alignment with the aperture. Charger board 28 can be adhered to the element 3 surface such as by hot glue. The arrangement of the charger board on an incline plane resting on the switch creates an empty space above the charger board for the voltage step-up board to be stacked on top of the charger board.

In this particular embodiment, the port 25 is a USB-C port, but other types of port and charger board combinations can be substituted as can be envisioned by one of ordinary skill in the art. FIG. 11E shows a perspective view of the top of the enclosure. The back of the enclosure has an opening in the back for two wire pairs (one pair to the battery, one pair to the blower). In some embodiments, the integrated electronics enclosure 50 can be 3D printed from polylactic acid (PLA). FIGS. 11B-11D and 11F-H show various views of the integrated electronics enclosure 50, including dimensions in mm. These dimensions, however, can be modified to fit differently sized components, or the shape may be modified to fit a specific protective helmet 200.

FIG. 11I shows another embodiment of the integrated electronics enclosure 50 in which the components inside the enclosure are shown outside for the purposes of demonstration. Lines indicate the wiring setup when the components are inside the enclosure. In this example, lithium-ion battery 21 is wired to the battery terminals 27 of a charger board built around the TP4056 integrated circuit for managing charge from external power via the USB jack 25. The output of the charger board 28 is connected to the input of the voltage step-up board 26 and the output is connected to the fan 10, interrupted by the power switch 24.

FIGS. 12A-12E are various views of plan drawings of an embodiment of the fan assembly enclosure 13. FIGS. 12A-D are views of the shell (or base) of the enclosure, while FIG. 12E is the top of the enclosure. FIG. 12A shows the internal structure, which in this embodiment is designed as a “volute” for air to be drawn in from the top and travel through a cavity of increasing volume to then maximally direct the air out of the nozzle. The nozzle in this embodiment is the narrowed end of the fan enclosure formed by the barbed coupler 12, which allows for flexible tubing of a nominal and widely available size (½″) to be pressure-fitted onto the fan enclosure. The nozzle and base of the fan assembly enclosure 13 are made as one piece for an air-tight path of travel for the air. FIG. 12E shows the top of the fan assembly enclosure, which can be welded to the top of the fan shell once the blades have been inserted to provide a single flat surface to seal. The dimensions indicated can be modified to fit differently sized fan assembly components, or the shape may be modified to fit a specific protective helmet 200. In some embodiments, the fan assembly enclosure 13 can be 3D printed from polylactic acid (PLA).

FIGS. 13A-13D provide various views and dimensions of rigid air tube 32 that can be used in conjunction with or in place of flexible tubing 30. In some helmet designs, if the entire path of travel from the fan (placed over a vent near the back of the helmet) to the air outlet (placed near the user's brow) were to be made from flexible tubing, kinks can quickly develop and impede airflow. The rigid air tubing 32 gently makes the turn required for air to flow unimpeded. Rigid air tubing 32 includes a barbed coupler 12 for connection to flexible tubing, such that the flexible tubing can be used on short, largely straight runs. Such an arrangement provides for some routing flexibility without kinking. The barbed end is shaped to allow flexible tubing to pressure-fit onto it while the opposite end has a ledge permitting the outlet nozzle to be snapped on and still be able to rotate freely. In some embodiments, flexible tubing may be omitted, wherein the rigid tubing connects to or is formed as a single piece with the fan assembly enclosure. The dimensions and curvatures shown can be modified to fit differently sized or shaped protective helmets 200 as can be envisioned by one of ordinary skill in the art. In some embodiments, the rigid air tubing 32 can be 3D printed from polylactic acid (PLA).

FIGS. 14A-14D provide various views and dimensions of a directional air outlet (or nozzle) 40 that can be connected to the end rigid air tube 32 to direct air to the wearer. The nozzle 40 has a cylindrical outside body in order to allow for the device to be installed where helmet padding allows it, and also to connect to the rigid air tube 32. The internal volume is curved as indicated by the dashed lines, which curvature causes air to exit the outlet at an angle. Because the outlet 40 is snap fit onto the air tube 32, the nozzle can be rotated freely around the air tube and the wearer can choose which way to point the air by easily turning only the nozzle. The snap mechanism is the thrice-notched end at the bottom left of FIG. 14A. The dimensions and curvatures shown can be modified to fit differently sized or shaped protective helmets 200 as can be envisioned by one of ordinary skill in the art. In some embodiments, the rigid air tubing 32 can be 3D printed from polylactic acid (PLA).

Protective Helmets with Forced Air Circulation

FIGS. 15A-15E are examples of an industrial helmet (hard hart) 200 including an add-on air circulation device 100. FIGS. 15A and 15B show a standard hard hat with suspension system and the hard hat with the suspension system removed, respectively. FIG. 15C shows the device 100 adhered to the interior of shell beneath the suspension system of hard hat 200. In this example, the device is fastened using hook and loop fastening cut to fit the device. Other means of adhesion could also be used, as can be envisioned by one of ordinary skill in the art. In general, the device includes one fan assembly, two Lithium-Ion polymer pouch batteries, and one electronic control unit, each of which are integrated into a single body made of a flexible plastic material such as TPU. Switch 24 is placed in an accessible location above the wearer's ear. Fan assembly 10 is located at the apex of the wearer's head to circulate air within the helmet and is connected to two batteries 21 and integrated electronics enclosure 50 to enable power for a full workday under most conditions. The integrated electronics enclosure 50 houses the electronics control unit, which contains a combined lithium-ion cell charge management and over-discharge protection circuit board (“charger board 28”), a voltage step-up circuit board (“step-up board 26”) that is able to drive a 12V high-speed blower, and a DC fan speed controller to support multiple operating speeds through pulse-width modulation. FIG. 15D is a drawing of the device 100 shown in FIG. 15C. A channel runs down the center of the device to accommodate wires connecting each section. FIG. 15E is a model showing device 100 (FIGS. 15C, 15D) installed in a hard hat 200. The fan, batteries, and electronics of the device can be enclosed in an enclosure to keep the components connected and to allow for easy installation of a single-piece device.

FIGS. 16A-16S are plan drawings of the enclosure for the device 100 shown in FIGS. 15C-15E. The dimensions indicated (shown in mm) can be modified to fit differently sized assembly components, or the shape may be modified to fit a specific protective helmet 200.

FIG. 16A shows an exploded view of the enclosure. FIGS. 16B-E are various views of the ribbon-shaped base of the enclosure. The body can be made from a flexible plastic material such as TPU. The circular section has a depression for mounting the hard shell of the blower “puck”. Each of the two identical center sections accepts a battery for a total of two batteries. Each section perimeter is notched for running wires from each section to the electronics section along the center of the device 100. The section on the opposite end from the blower mount holds the electronic components. The two apertures shown on the electronics enclosure section are for the USB-C power port and a power switch.

FIGS. 16F-16L are plan drawings of the “puck” and lid which are the top components of the enclosure, which encase the fan assembly of the device. The “puck” (FIGS. 16F-16H) is a round piece with protruding legs or perimeter outlets made from hard plastic and is open to allow for easy installation of the blower motor and blades. The separate lid (FIGS. 16I-16L) is adhered atop the puck after placement of the fan (e.g. though welding, glue, hot melt, etc), making for easy assembly overall assembly and providing additional rigidity to the compound ribbon body piece. The air intake for the fan is through the top of the puck and lid. In this embodiment, there are six (6) outlets around the perimeter, but more or fewer can be included. The perimeter outlets create a convective current that has an evaporative cooling effect on the wearer.

FIGS. 16M-16P are plan drawings of the battery section lids and FIGS. 16Q-16S are plan drawings of the lid for the electronics component section of the enclosure. In some embodiments, the tops to the battery and electronics sections are made from pliable TPU plastic so as to not present any hard edges to the interior.

FIGS. 17A-C are images of a batting helmet with an integrated device 100 for forced air circulation. In this example, the air channels (or tubing) are internal to the helmet, and the air outlets are perforations along the perimeter of the helmet. The perforations are fluidly connected to the air channels so that air is directed through the perforations to the wearer's skin. In the examples shown, the helmet has a cavity at the rear of the helmet to receive the fan assembly 10 and intake air from outside of the helmet. The solid arrow in FIG. 17A indicates the direction of air intake to the fan assembly, and the dashed arrows indicate the direction of air flow exiting the perforations along the perimeter of the helmet. FIG. 17B is a rendering of the rear of the helmet, showing the cavity for the fan assembly. FIG. 17C is a camera image of a prototype batting helmet with fan assembly 10 installed in the blower cavity.

FIG. 18A is an example of an industrial protective helmet 200 (e.g. a hard hat) with the device integrated into the helmet at the point of manufacture. In this example, interior concavities are built into the shell form to hold the blower, power, and control modules. Each module can have a separate cavity, or a single cavity can hold a device such as the one shown in FIG. 15D. In this example, the back piece acts as the power button 24.

FIG. 18B is an example of an industrial protective helmet 200 (e.g. a hard hat) with the device integrated into the suspension system of the hard hat. The fan assembly 10 is incorporated into the ratchet 62 at the back of the suspension system with the intake facing out from the base of the head. Air is forced along two channels 30, one on each side, running on top of the temple straps of the suspension system 61. Each of the channels 30 directs air down towards the wearer's face below the temple line by way of orifices along the bottom of the channels. The orifices could also be turned 180 degrees, facing “up” and into the hard-hat shell for convective circulation of the stale air inside the shell. The power 21 and control components (not shown) are stacked below the fan, and along their perimeter is the ratcheting mechanism for adjusting the fit of the hard-hat by controlling the diameter of the suspension system.

Aspects of the Disclosure

The present disclosure will be better understood upon reading the following numbered aspects, which should not be confused with the claims. Any of the numbered aspects below can, in some instances, be combined with aspects described elsewhere in this disclosure and such combinations are intended to form part of the disclosure.

Aspect 1. A device for a protective helmet, comprising: a power assembly and a fan assembly; and wherein the air is circulated within the interior of the helmet, directed to a wearer's skin, or a combination thereof.

Aspect 2. The device of aspect 1, wherein the fan assembly has an air intake to draw fresh air into the helmet shell from existing apertures in the helmet to circulate the air.

Aspect 3. The device of any of aspects 1-2, wherein the power assembly comprises a rechargeable power source providing three or more hours of continuous use and control circuitry for the power source.

Aspect 4. The device any of aspects 1-3, wherein the device is contained entirely inside the interior of the helmet, and wherein the device is installed between the helmet shell and interior padding.

Aspect 5. The device of any of aspects 1-4, wherein the fan assembly is connected to tubing and the fan assembly directs air flow from a first end of the tubing to exit through a second end of the tubing.

Aspect 6. The device of aspect 5, wherein the second end of the tubing is connected to an adjustable nozzle such that direction of air flow is directable by the wearer.

Aspect 7. The device of any of aspects 2-6, wherein the fan assembly comprises a filter at the air intake.

Aspect 8. The device of any of aspects 1-7, wherein each of the power assembly, the fan assembly, and the tubing can be individually placed and removably affixed to the interior of the helmet.

Aspect 9. The device of any of aspects 1-8, wherein the fan assembly can be operated at variable powers via a fan assembly switch.

Aspect 10. The device of any of aspects 1-9, wherein the helmet is a helmet selected from the group consisting of American football helmet, hockey helmet, lacrosse helmet, cycling helmet, motorsports helmet, snowsports helmet, equestrian sports helmet, bull riding helmet, baseball helmet, softball helmet, extreme sports helmet, military helmet, and law enforcement helmet.

Aspect 11. The device of any of aspects 1-9, wherein the device is integrated into a suspension system for an industrial helmet.

Aspect 12. A protective helmet comprising: an outer shell; an inner lining; and a device comprising a power assembly and a fan assembly; wherein the device is fastened between the outer shell of the helmet and the inner lining of the helmet; and wherein the air is circulated within the interior of the helmet, directed to the wearer's skin, or a combination thereof.

Aspect 13. The helmet of aspect 12, further comprising: tubing connected to the fan assembly, wherein the tubing directs air flow; and wherein the fan assembly has an air intake to draw fresh air into the helmet shell from existing apertures in the helmet to circulate air.

Aspect 14. The helmet of aspect 12, wherein the fan assembly is located at the top of the helmet to recirculate air in the interior of the helmet.

Aspect 15. The helmet of any of aspects 12-14, wherein the power assembly comprises a rechargeable power source providing three or more hours of continuous use and control circuitry for the power source.

Aspect 16. The helmet any of aspects 12-13 and 15, wherein the device is contained entirely inside the interior of the helmet, and wherein the device is installed between the helmet shell and interior padding.

Aspect 17. The helmet of any of aspects 12, 13 and 15-16, wherein the fan assembly is connected to a first end of the tubing and the fan assembly directs air flow from a first end of the tubing to exit through a second end of the tubing.

Aspect 18. The helmet of aspects 17, wherein the second end of the tubing is connected to an adjustable nozzle such that direction of air flow is directable by the wearer.

Aspect 19. The helmet of any of aspects 12-13 and 15-18, wherein the tubing is perforated to provide air flow inside the helmet.

Aspect 20. The helmet of any of aspects 12-19, wherein the fan assembly comprises a filter at the air intake.

Aspect 21. The helmet of any of aspects 12-13 and 15-20, wherein each of the power assembly, the fan assembly, and the tubing can be individually placed and removably affixed to the interior of the helmet.

Aspect 22. The helmet of any of aspects 12-21, wherein the fan assembly can be operated at variable powers via a fan assembly switch.

Aspect 23. The helmet of any of aspects 1-9, wherein the helmet is a helmet selected from the group consisting of American football helmet, hockey helmet, lacrosse helmet, cycling helmet, motorsports helmet, snowsports helmet, equestrian sports helmet, bull riding helmet, baseball helmet, softball helmet, extreme sports helmet, industrial protective helmet, military helmet, and law enforcement helmet.

Aspect 24. A protective helmet comprising: a protective shell; and a device comprising a power assembly and a fan assembly, where the device is integral to the interior of shell of the helmet, and where the device provides forced air circulation to the wearer.

Aspect 25. The helmet according to aspect 24, wherein the helmet comprises a cavity for the fan assembly.

Aspect 26. The helmet according to aspect 24, wherein the interior shell of helmet comprises channels that direct the forced air to the wearer.

Aspect 27. The helmet according to aspect 24, the interior shell of helmet comprises recesses for the power assembly.

Aspect 28. The helmet according to aspect 24, wherein the power assembly comprises a battery, a charger board having a charging port, control circuitry, a voltage step-up board, and a power control.

Although embodiments have been described herein in detail, the descriptions are by way of example. The features of the embodiments described herein are representative and, in alternative embodiments, certain features and elements may be added or omitted. Additionally, modifications to aspects of the embodiments described herein may be made by those skilled in the art without departing from the spirit and scope of the present invention defined in the following claims, the scope of which are to be accorded the broadest interpretation so as to encompass modifications and equivalent structures.

Disjunctive language such as the phrase “at least one of X, Y, or Z,” unless specifically stated otherwise, is otherwise understood with the context as used in general to present that an item, term, etc., may be either X, Y, or Z, or any combination thereof (e.g., X, Y, and/or Z). Thus, such disjunctive language is not generally intended to, and should not, imply that certain embodiments require at least one of X, at least one of Y, or at least one of Z to each be present.

It should be noted that measurements, amounts, and other numerical data can be expressed herein in a range format. It is also understood that there are a number of values disclosed herein, and that each value is also herein disclosed as “approximately” that particular value in addition to the value itself. For example, if the value “10” is disclosed, then “approximately 10” is also disclosed. Similarly, when values are expressed as approximations, by use of the antecedent “approximately,” it will be understood that the particular value forms a further aspect. For example, if the value “approximately 10” is disclosed, then “10” is also disclosed.

It should be emphasized that the above-described embodiments of the present disclosure are merely possible examples of implementations, and are set forth only for a clear understanding of the principles of the disclosure. Many variations and modifications may be made to the above-described embodiments of the disclosure without departing substantially from the spirit and principles of the disclosure. All such modifications and variations are intended to be included herein within the scope of this disclosure. 

1. A device for a protective helmet, comprising: a power assembly and a fan assembly; wherein the power assembly comprises a rechargeable power source providing three or more hours of continuous use and control circuitry for the power source; and wherein the device circulates air, and wherein the air is circulated within an interior of the helmet, directed to a wearer's skin, or a combination thereof.
 2. The device of claim 1, wherein the fan assembly has an air intake to draw fresh air into the helmet shell from existing apertures in the helmet to circulate the air.
 3. (canceled)
 4. The device of claim 1, wherein the device is contained entirely inside the interior of the helmet, and wherein the device is installed between an outer helmet shell and interior padding.
 5. The device of claim 1, wherein the fan assembly is connected to tubing and the fan assembly directs air flow from a first end of the tubing to exit through a second end of the tubing and wherein the second end of the tubing is connected to an adjustable nozzle such that direction of air flow is directable by the wearer.
 6. (canceled)
 7. The device of claim 2, wherein the fan assembly comprises a filter at the air intake.
 8. The device of claim 5, wherein each of the power assembly, the fan assembly, and the tubing are configured to be individually placed and removably affixed to the interior of the helmet.
 9. The device of claim 1, wherein the fan assembly is operable at variable powers via a fan assembly switch.
 10. (canceled)
 11. The device of claim 1, wherein the device is integrated into a suspension system for an industrial helmet.
 12. A protective helmet comprising: an outer shell; an inner lining; and a device comprising a power assembly and a fan assembly, wherein the power assembly comprises a rechargeable power source providing three or more hours of continuous use and control circuitry for the power source; wherein the device is fastened between the outer shell of the helmet and the inner lining of the helmet; and wherein the air is circulated within the interior of the helmet, directed to the wearer's skin, or a combination thereof.
 13. The helmet of claim 12, further comprising: tubing connected to the fan assembly, wherein the tubing directs air flow, wherein the fan assembly is connected to a first end of the tubing and the fan assembly directs air flow from a first end of the tubing to exit through a second end of the tubing; and wherein the fan assembly has an air intake to draw fresh air into the outer shell from existing apertures in the helmet to circulate air. 14-15. (canceled)
 16. The helmet of claim 12, wherein the device is contained entirely inside the interior of the helmet, and wherein the device is installed between the outer shell and interior padding.
 17. (canceled)
 18. The helmet of claim 17, wherein the second end of the tubing is connected to an adjustable nozzle such that direction of air flow is directable by the wearer.
 19. The helmet of claim 13, wherein the tubing is perforated to provide air flow inside the helmet.
 20. The helmet of claim 12, wherein the fan assembly comprises a filter at the air intake.
 21. The helmet of claim 12, wherein each of the power assembly, the fan assembly, and the tubing are configured to be individually placed and removably affixed to the interior of the helmet.
 22. The helmet of claim 12, wherein the fan assembly is operable at variable powers via a fan assembly switch.
 23. The helmet of claim 12, wherein the helmet is a helmet selected from the group consisting of American football helmet, hockey helmet, lacrosse helmet, cycling helmet, motorsports helmet, snowsports helmet, equestrian sports helmet, bull riding helmet, baseball helmet, softball helmet, extreme sports helmet, industrial protective helmet, military helmet, and law enforcement helmet.
 24. A protective helmet comprising: a protective shell; and a device comprising a power assembly and a fan assembly, where the device is integral to an interior of the protective shell and wherein an exterior of the protective shell comprises a cavity for the fan assembly, and where the device provides forced air circulation to the wearer, wherein the power assembly comprises a battery, a charger board having a charging port, control circuitry, a voltage step-up board, and a power control.
 25. (canceled)
 26. The helmet according to claim 24, wherein an interior of the protective shell comprises channels that direct the forced air to the wearer.
 27. The helmet according to claim 24, an interior of the protective shell comprises recesses for the power assembly.
 28. (canceled) 